Tile floor closet flange issues. With picture.

Can anyone offer any advise on this. I screwed up and tiled this floor right up to the 3"abs opening in a concrete floor. I bought an inside closet flange for 3" abs, however the problem is the flange has a small shelf on the bottom of it, which makes it sit up too hight off the floor for the toilet to go flush. I was wondering if I could just attach a closet ring to the floor with Tapcons, to hold the toilet bolts in place, and use a wax ring with a horn? As you can see from the pictures, the top edge of the 3" abs is only 3/8" below the level surface of the tile. I appreciate any help and advice. Thanks

If you can chisel (knock out) enough tile to get your flange to set flush, great. there are a "hundred" different flanges out there and one would problably work for you.

I once found a 3" solid abs closet flange that would fit in my confined space (without the "shelf"). My supplier didn't have what I needed, but when we went to see what they had, I found what I needed. sometimes they put back into stock, products that are returned, and were from other sources.

I like the diamond wheel idea. As for the inside 3" flange, that is what I am using, however it has a small "shelf" on the bottom side of it and this "shelf" is keeping the flange from going flush with the floor.

coyote556 , Before you try to chisel the tile use a glass cutter to scribe a line where you want the tile to brake. Like maybe 1/4" out from where the flange would be. Then use a chisel and take out a little at a time. That should do it.